Skive tool:
https://www.ballisticproducts.com/Po...tinfo/0740012/
On Lil' Gun, it's one of the more popular 410 powders at the two skeet clubs I shoot at. I lean towards 296 because I've got a great 22 Hornet worked up, and it works well in the AA hulls I use. One less powder to keep in inventory is a good thing.
410's are more particular about column height then the other gauges where you can increase wad pressure to compress the legs on the wad to get a less than ideal component combination to fit in the case. The AA hulls were designed for 296.